XNA 4.0中实现简单的快捷键模板

 

 

在XNA中，可以通过GraphicsDeviceManager提供的ToggleFullScreen来进行全屏状态转换

通常的游戏中，都会使用Alt+Enter来进行全屏状态切换，所以我们可以在Update中使用如下代码进行全屏切换

   1: protected override void Update(GameTime gameTime)
   2:  
   3: {
   4:  
   5: if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
   6:  
   7: this.Exit();
   8:  
   9: if (Keyboard.GetState()[Keys.RightAlt] == KeyState.Down &&
  10:  
  11: Keyboard.GetState()[Keys.Enter] == KeyState.Down)
  12:  
  13: {
  14:  
  15: graphics.ToggleFullScreen();
  16:  
  17: }
  18:  
  19: base.Update(gameTime);
  20:  
  21: }
  22: 

在里我们使用Keyboard.GetState来获取按键状态

当然我们可以封装起方法来进行操作

   1: protected override void Update(GameTime gameTime)
   2:  
   3: {
   4:  
   5: if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
   6:  
   7: this.Exit();
   8:  
   9: KeyboardTemplate(() => graphics.ToggleFullScreen(), Keys.Enter, Keys.RightAlt);
  10:  
  11: base.Update(gameTime);
  12:  
  13: }
  14:  
  15: void KeyboardTemplate(Action action, params Keys[] keys)
  16:  
  17: {
  18:  
  19: if (keys.Any(key => Keyboard.GetState()[key] != KeyState.Down))
  20:  
  21: {
  22:  
  23: return;
  24:  
  25: }
  26:  
  27: action();
  28:  
  29: }
  30: 

当然我们也可以添加其它一些功能

   1: protected override void Update(GameTime gameTime)
   2:  
   3: {
   4:  
   5: if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
   6:  
   7: this.Exit();
   8:  
   9: KeyboardTemplate(graphics.ToggleFullScreen, Keys.Enter, Keys.RightAlt);
  10:  
  11: KeyboardTemplate(this.Exit, Keys.F4, Keys.LeftControl);
  12:  
  13: base.Update(gameTime);
  14:  
  15: }

这样就可以在Ctrl+F4的时候关闭当前游戏了

posted @ 2011-12-27 21:57  tiny羊  阅读(301)  评论(0)    收藏  举报